Help! i need an explanation on how to do this asap!

Can you simplify 4/7? 24 points will be awarded!

The equatorial radius of earth is approximately 6 × 10^3 km, while the equatorial radius of saturn is approximately 6 × 10^4 km. which of the following is true? a. the equatorial radius of saturn is approximately one hundred times that of earth. b. the equatorial radius of saturn is approximately ten times that of earth. c. the equatorial radius of earth is approximately one hundred times that of saturn. d. the equatorial radius of earth is approximately ten times that of saturn.

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2